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net/mlx5: Lag, refactor lag state machine

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LAG state machine is implemented using bit flags. However, all these bit
flags, except for MLX5_LAG_FLAG_HASH_BASED, are really mutual exclusive.

In addition, MLX5_LAG_FLAG_READY is used by bonding to mark if we have
our netdevices successfully added to lag and does not really belong in
the same flags variable as the other flags.

Rename MLX5_LAG_FLAG_READY to MLX5_LAG_FLAG_NDEVS_READY to better
reflect its purpose and put it in a new flags variable.

For the rest of the flags, we introduce a mode enum to hold the state
of the LAG.

Remove the shared fdb boolean flag from struct mlx5_lag and store this
configuration as a mode flag.

Change all flag related operations to use standard Linux APIs.

Signed-off-by: Eli Cohen <elic@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Eli Cohen 2022-01-24 11:30:46 +02:00 • committed by Saeed Mahameed
commit ef9a3a4a81
4 changed files with 93 additions and 68 deletions
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